Zte Axon - Device

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Device
Storage
To view the phone’s internal storage status:
Touch the Home key > > Settings > Storage
Touch Used space to get a detailed breakdown of space
usage by type. Touch a data type to see more information
or delete the files you do not need.
When connecting a USB storage device, such as a USB
flash, to the phone with an OTG adapter cable, you can
view its storage status, unmount it, or erase all data on it.
Battery
To view the battery level, check what has been using power,
and enable battery saving mode:
Touch the Home key > > Settings > Battery
NOTE: Touch an app or service to adjust its settings to
conserve battery life. For example, touch
Screen > DISPLAY to change screen brightness
and sleep.
Touch > Battery saver to manage battery saving mode,
including turning Battery saver on or off, or setting a battery
level at which Battery saver can turn on automatically.